1642473 has 36 divisors (see below), whose sum is σ = 2898688. Its totient is φ = 876960.

The previous prime is 1642463. The next prime is 1642481. The reversal of 1642473 is 3742461.

It is not a de Polignac number, because 1642473 - 2⁵ = 1642441 is a prime.

It is a d-powerful number, because it can be written as 1 + 6⁶ + 4⁷ + 2¹⁹ + 4¹⁰ + 7 + 3⁸ .

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1642423) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 52968 + ... + 52998.

2^1642473 is an apocalyptic number.

It is an amenable number.

1642473 is a deficient number, since it is larger than the sum of its proper divisors (1256215).

1642473 is a wasteful number, since it uses less digits than its factorization.

1642473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102 (or 70 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 1642473 is about 1281.5900280511. The cubic root of 1642473 is about 117.9866163122.

The spelling of 1642473 in words is "one million, six hundred forty-two thousand, four hundred seventy-three".